Plumber s force-pump



(N0 Modell)- Patented June 28.- 1892.

J. H. LAWLBSS. PLUMBERS'FORGE PUMP. No. 477,808.

/NVENTOH W/ TNE SSE S m: mams persas co., Muro-mno.. wAsmNa'ron, n. c,

UNITED lSTATES 'PATENT OFFICE.

JOHN H. LAVVLESS, OF JERSEY CITY, NEV JERSEY.

SPECIFICATION forming part of Letters Patent No. 477,808, dated .Tune2.8, 1892. Application tiled March 17, 1892. Serial No. 425,251. (Nomodel.)L A v To a/ZZ whom t may concern:

v Be it known that I, JOHN H. LAWLESS, a citizen of the United States,and a resident of Jersey City, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements in PlumbersForce-Pumps, of which the following is aspeci- :tcation.

This invention relates to certain improvements in the plumber-sforce-pump for which Letters Patent were granted to me,No. 357,717,dated February 15, 1887, by which improvement the pump is adapted in amore efcient manner for the purpose of removing obstructions from theservice-pipes of buildings without any shocks or hammering Yaction inthe stand-pipe of the pump itself and by which the pump can-also be usedas a liftingpump for removing water from basements or cellars by asimple attachment thereto;A and the invention consists of a plumbersforce-pump which comprises an exterior reservoir of a suitable size, apump in said reservoir, a stand-pipe located in said reservoir andconnected with the pump, a valve-chamber having valves for establishingcommunication between the pump-cylinder and reservoir and thepumpcylinder and stand-pipe, respectively, a discharge-pipeat the upperend of the stand-pipe, an interiorly-threaded shoe at the lower end ofthe valve-chamber, and a detachable pipesection that is inserted throughan opening near the base of the reservoir into said shoe,

provided with an exterior collar, and connectv ed with a suction-pipewhenever the pump is used as a suction and force pump for pumping waterout of basements or cellars.

In the accompanying drawings, Figure l represents a vertical centralsection of my improved plumbers force-pump arranged so that it can beused as a Asuction and force pump for pumping water from basements andcellars. Fig. 2 is a vertical transverse section of the lower part of`the pump, showing the same arranged for use for removing obstructionsin the service-pipes; and Fig. 3 is a horizontal section on line 3 3,Fig. l.

Similar letters vof reference indicate corresponding parts.

Referring to the drawings, A represents a cylindrical reservoir ofsuitable size, in the lower part of which is located a force-pump C,

the cylinder of which is screwed into a shoe or base part C', which isconnected at its lower part with -thelower part or valve-chamber D of astand -pipe D, which extends through the reservoir and through anopening in the top or cover of the same to some distance above thereservoir.. The upper end of thestand-pipe D is tightly closed by ascrewcap D2, which is provided with ears d, to which the lever B ispivoted by which the pump is operated. The piston-rod C? is connectedwith the piston Cand pivoted at its upper end to the level-B, so as tobe moved up and down by the same. The piston C2 is packed withcup-leathers, as shown in Fig. 1, and attached'rigidly to the lower endof the .piston-rod C3, the leather packing giving sufficiently tocompensate for the slight oscillations of the piston-rod. The cap orcover a of the reservoir A is provided with a slot for the piston-rodC3, said slot being large enough to give the play required by theoscillations of the piston-rod C3. The stand-pipe D is screwed at itslower end into the cylindrical valve-chamber D', which is provided withvalve-seats near its upper and lower ends and with valves e and e', thelower valve establishing communication between the pump-cylinder andreservoir, while the u pper valve establishes communication between thepump -cylinder and stand-pipe. When the pump is operated, water is drawninto the pump-cylinder C by the upward motion of the piston through thelower valve e, while thel upper valve c isy closed by the pressure ofthe water in the stand-pipe and by the suction exerted on the sameduring the upward motion of t-he pump-piston. When the piston is movedin downward direction, the lower Valve e is closed and the upper valve clifted, so that the water in the pump-cylinder is forced into thestand-pipe D. The stand-pipe D is connected by an openingf at its upperend and a coupling f withl a bent discharge-pipe f2, which is connectedby a suitable hose E to the faucet of the service-pipe that is to becleaned from sediment or obstructions. The discharge-pipe f2 is locatedat the upper end of the reservoir A, while below the same a faucet g,that is screwed in an opening g of the reservoir, is arranged, whichfaucet is connected with a rubber tube g2, that is inserted into theupper end of the reservoir when the IOO latter is to be filledpreparatory to using the pump or into a basin or sink when it is desiredto produce thedischarge of thesediment or obstruction from theservice-pipe. The stand-pipe D is extended to a sufficient height abovethe discharge-pipe f2 so that an y chamber D is provided with a shoe ort'oot D2, having an interiorly-threaded dischargeopening cl2, throughwhich when the pump is used as a force-pump for removing obstructions inthe service-pipes Ithe water passes from the reservoir into the pump.When the pump, however, is desired to be used as a suction and forcepump for pumping water from basements or cellarsa coupling-pipe F isintroduced through an opening a near the bot! tom of the reservoir A andscrewed into the opening d2 of the foot D2 until a collar a2 on thecoupling-pipe abuts against theV reservoir, a Washer being preferablyintroduced between the collar and reservoir, so as to produce the tightclosing of the opening a.

To the exterior end of the coupling-pipe F is applied a hose F', whichis of sufiicient length to be placed in position in the basement orcellar. When the coupling-pipe is removed, the opening a is closed by ascrewplug d3, as shown in Fig. 2.

The operation of my improved force-pump for plumbers is the same asdescribed in my prior patent heretofore referred to, with the exceptionthat, owing to the arrangement of the air-chamber above thedischarge-pipe, the pump is operated not only with greater efficacy, butmainly with greater facility and Without the annoying hammering actionof the water in the stand-pipe. When the pump is t0 be used as a suctionand force pump, the coupling-pipe F is inserted and screwed into thefoot D2 of the stand-pipe D and the hose F connected thereto. The faucetgis then closed, as during the suction and force action of the pump thesame is not required. The hose E on the discharge-pipe is conducted to agutter or other suitable place. The pump is then operated and the waterlifted and conducted away in the ordinary manner.

In place of filling the reservoir from the service-pipe in case thesameis choked by some obstruction the same can also be filled from a bucketfilled with water, in which the plug at the lower part of the reservoiris removed or the end of the hose F placed into the bucket and therequired quantity of water drawn into the pump.

By this attachment my improved forcepump can be readily changed into asuction and force pump for pumping water from basements or cellars andthe unhandy sheet-metal liftingpumps usually used by plumbers can bedispensed with and a much more convenient pump furnished in place of thesame, which, owing to its small size, can be operated at any suitablepoint without the least inconvenience.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination,with areservoir, of an opening in itslower part, a pump in said reservoir, a stand-pipe also located in thereservoir, a valve-chamber at the lower end of the standpipe, havingvalves for establishing communication between the pump-cylinder and thereservoir and stand-pipe, respectively, a discharge-pipe connected withthe stand-pipe at the upper part of the reservoir, a foot attached tothe lower end of the Valve-chamber, a coupling-pipe inserted into thefoot of the stand-pipe and provided with an exterior collar for closingthe opening in the base of the reservoir, and a suction-pipe connectedwith the outer end of the coupling-pipe, substantially as set forth.

In testimony that I claim the foregoing as my invention l have signed myname in pres` ence of two subscribing witnesses.

JOHN I-I. LAVVLESS.

Witnesses: Y

PAUL GOEPEL, CHARLES SCHROEDER.

